Water-level gage.



G. L. HUNTRESS, Jn. @L C. EIBYE.

WATER LEVEL GAGE.

APPLlcAxoN man SEPT. 5, 1913.

ai". mmm Aug. 13, 191.8.

irren i WATEELEVEL GAGE.

To all whom t may concern.'

Be it known that we, Gnonen L. HUNT- nnss, Jr., a citizen of the United States, and t. resident of Winchester,.h/lassachusetts, and

@niet Eiern, a subject of the King of Denmark, and resident of East Boston, Massachusetts, have invented an llmprovement in titer-Level Gages, of which the following description, in connection lwith the accom- 'lo `imnying drawings, is a specification, like characters on the drawings representing like parts. t Y

'lliisinvention relates to` gages such for example as aroused in disclosing the water l5 level in locomotive, marine and other high pressure boilers.

When the gage is in use, its water con.. y taining end is subjected to a lower temperature than its steam containing end. This fdo diii'erence in temperature tends to expand one end of thegage more than the other. .As a result, strains are set up which are lliabletoV crack the glass employed for permitting a ready reading of the water level.

@ne` ci the objects of the invention is `to provide a gage construction which will perniitfthe ready "removal of a glass and the substitution of a new one therefor.

The character of the invention may be best understoodA by reference to the following description ot' an illustrative embodi- `nient thereof shown in the accompanying drawing, whereint Figure 1 is a front elevation of an illustrativc gage shown herein. as embodying the invention t lliig. 2 is a rear elevation of the gage shown iii-Fig. l;

Fig. 3 is a vertical longitudinal. section se talren on line 3-3 of Fig. 1; and

Fig. 1i isa transverse section oit' Fig. l1 taken between the upper pairs of hinge ears. Reterring to the drawing, the illustrative gage shown therein as embodying theint5 vention, comprises an elongated water and steam container 1,` having at its ends threaded sockets for receiving pipes 3 for connection with the boiler; The front of the container `is provided with an elongated aperture 5. Over this aperture theremay be placed an elongated prism 7 oi glass or other appropriate transparent material. To facilitate the readingoi" the water level in the container, the glass may` have on` its rear Speecation of Letters Patent.

Application led September 5, 1913.

vpacking 21 being to receive and cushion the seating of the" Serial No. 'tendait face usual facets 9 which cause the water level to appear clear cut and distinct. 'lhe glass `is. adapted to be seated in a recess ll surrounding the apertureb, an appropriate packing 13 being interposed between said gllass and recess to prevent leakage between t icm.

i 'llo secure the glass tightly in said recess 4 -lljatentcd Ihnen t3? lltgtltld..

there is provided a frame l5 having elongated apertures 17 corresponding with the container aperture 5. rllhis frame has a recess 19 receiving the glass, an appropriate interposed in said recess glass in said traine. p

To i'urther contribute to the preventing ot leakage from the container past the glass the trarne 15 is provided with a lip 23 overlapping the container somewhat. Ardjaeent the junction ci the lip 23 with the main body or the frame 15 is a ledge 25 opposed to a lip 27 on the container. Between them is interposed a packing 29 of softer material than the packing i3 between the container and glass. As a result, the packing 29 will Yyield sutiiciently to permit the proper adends of the yokes at one side of said frame are received between pairs of e: 33 projecting iiroln said 'frame and are connected thereto by a pintle 35 preferably oli a length sufiicient to extend through registering eyes in all. oi said yohes and ears. To secure said pintle againstlongitudinal movement it is provided at one end with a head 37 and at its opposite end with a lock pin 39. The

construction just described constitutesa convenient hinge permitting the swinging adjustment of the yokes 3l as more fully hereinafter described. To cause all of the yokes to swing with the pintle as a unit, they may be fixed thereto by pins kl-l, or other appropriate means. i fille connect er ioclr the oppositeiends ot hence opposite sides of the gage present a symmetrical appearance.

To press -the container toward the glass and frame, each yoke is provided with a tightening screw 49 threaded through the bend of the yoke and adapted to bear against the back of the container.

It will be observed that each yoke has three points of application to the gage, that is to say at its hinge, pin and tightening screw. This is a very advantageous arrangement since it permits the container readily to rock on the screw 49 as a fulcrum and seat itself evenly and naturally against the glass. As a result, when the tightening screw is set up, the container, glass and frame are pressed evenly together and thereby tend to prevent all breaking of the glass from unequal strains thereon.

lVhen it is desired to introduce a new glass into the gage, it is merely necessary to seat the glass in the container recess, place the frame over the glass, swing the yokes 3l on their hinges, to their positions shown in Fig. 4, and drop the pi'n 45 through the registering apertures in the ends of the yokes and the frame ears 43. The screws49 may then be up to force. the parts together with any pressure desired.

In removing a broken glass from the gage and substituting a new one'therefor, it is not necessary to detach the container l or body of the gage proper from the pipes which connect it to the boiler, but it is merely necessary to adjust the swinging yokes and remove the glass frame as described;

While the gage described herein is shown as provided with three yokes for securing the container, glass and frame together, it will be understood that one or more may be used as desired, Also it is not indispensable that the plurality of yokes should be fast to their hinge pizitle for simultaneous adjustment but each might be swung on its hinge independently of another, if desired.

Having described one illustrative embodiment of the invention, without limiting the same thereto, what we claim as new and desire to secure by Lette-rs Patent is:

1. A gage comprising, in combination, al container, a frame', a glass interposed between said container and frame, and yoke means having provision permitting its swinge ing transversely to the length of the gage to permit the insertion of a glass in the gage.

2. A gage comprising, in combination, a container and a iframe having provision tor receiving a glass between them, and means for securing said parts together including yoke means straddliiig one of said parts and fulcrumed on the other for swinging movement transversely of the gage thereby to release the vconnection between the two to permit the removal of the glass or the introduction thereof to the container.

3. A gage comprising, in combination, a container and frame having provision for rcceiving a glass between them, and means for securing them together including yoke means hinged and fastened to one and straddling the other and screw means cooperating with said yoke means for tensioning said parts.

4. A gage comprising, in combination, a container having a lateral aperture and provision for attachment with pipe connections, a` glass seated over said aperture, a frame superposed over said glass and container, and yoke means for connecting said frame with said container and having provision permitting a swinging adjustment thereof transversely to said container to uncover the same and permit insertion of a glass in the. gage.

5. A gage comprising, in combination, a container having a sight aperture therein, a 95 frame, a glass interposed between said f ame and container, and means to press said parts together including a yoke having one end pivot-ed and its opposite end detachably connected and hinged to one and receiving the |l other, means common to said yokes for securing the latter in closed position and a glass interposed between said container and frame.

9, A gage comprising, in combiration, a container, a frame, a. glass interl'osed between them, and means detachably connect,- ing said frame and container includin a plurality of yokes and means for effecting the sumultaneous swinging thereof in inserting and removing a glass.

10. A gage comprising, in combination, a container 1, a frame l5, a glass 7 interposed between said container and frame, and securing means therefor including a member 3l 130 nemen? and means including aA lock element 4:5 conmeeting said members to said frame ineludneeting seid member with 'seid frame for ing' elements 35 and 45. permitting the openingl of said member to In testimony \vhereoii',\'vei1ave signed our eHow removal of the glass from on introdncnames to this specification, in the presence 5 tion thereof to the container. of two subscribing Witnesses.

11. A gage comprising, in combination, GEORGE L. HUNTRESS, JR. e container l, e fra-me 15, a glass 7 inter- CARL EXBYE, posed between seid container and freine, and Witnesses: means for securing seid parts together com- Ronn'r H. KAMMLER,

i0 prising yoke members 31, and means for eon- HENRY T. WILLIAMS. 

